ATEX PowerLine Monitoring System With Single-Cable Control
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Solution Overview
Problem
Existing systems for controlling devices in explosive environments are complex, requiring numerous electrical connections, significant material and economic resources, and involve high downtime due to disconnection/reconnection requirements, posing risks of arcing and non-compliance with ATEX regulations.
Innovation Solution
A system utilizing a Power Line communication network with a mother PowerLine module in a non-ATEX environment converting digital signals to analogue, a child PowerLine module in the ATEX environment converting back to digital, and a processing unit within a compliant casing, connected via a single cable for power and signal transmission, minimizing connections and arcing risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple electrical connections are used to control a device in an ATEX environment, then the device can be properly powered and controlled, but the system complexity and material requirements increase significantly
Solution Approach 1:
The patent combines power supply and data communication functions into a single electrical cable connection. The PowerLine module modulates data signals onto the power cable, allowing both power delivery and bidirectional communication through one cable, thereby reducing the number of connections from multiple separate cables to a single integrated connection.
Solution Approach 2:
The electrical cable is made universal by enabling it to perform multiple functions simultaneously: power transmission and bidirectional data communication. The PowerLine module embedded in the cable allows the same physical medium (power cable) to carry both electrical power and modulated data signals, eliminating the need for separate dedicated control and power cables.
2Reliability
If control electronics are placed remotely outside the ATEX environment, then safety is improved, but the number of electrical connections required increases
Solution Approach 1:
The patent merges power supply and communication functions into a single cable connection, reducing the quantity of electrical connections needed to interface with remote control electronics located outside the ATEX environment.
Solution Approach 2:
The PowerLine module acts as an intermediary device that enables bidirectional communication through the power cable itself, allowing the control system outside the ATEX environment to communicate with the device inside using the existing power infrastructure rather than requiring additional dedicated communication cables.
3Reliability
If multiple electrical connections are protected to comply with ATEX regulations, then safety is improved, but the economic cost and material usage increase
Solution Approach 1:
The patent reduces the total material required by combining multiple protected electrical connections into a single PowerLine cable assembly. Instead of requiring separate shielded cables for power and control signals, each needing individual ATEX protection, the solution uses one integrated cable with embedded PowerLine technology that requires a single protection interface.
Solution Approach 2:
The single PowerLine cable serves multiple functions (power and communication) that would traditionally require separate protected cables, thereby reducing the total quantity of protected material needed while maintaining ATEX compliance through a single standardized protection interface.
4Reliability
If disconnections and reconnections are performed to meet safety requirements, then compliance is improved, but production downtime increases
Solution Approach 1:
The PowerLine communication system enables continuous operation by allowing hot-swappable cable connections. The single integrated PowerLine cable can be connected or disconnected without requiring system shutdown, as the PowerLine module handles connection events gracefully, maintaining continuous power and communication throughout the process.
5Device complexity
If a single cable is used for power and signal transmission, then connections are simplified and costs reduced, but the risk of arcing in ATEX environment must be minimized
Solution Approach 1:
The PowerLine module acts as an intermediary that isolates and protects the ATEX environment from potential arcing hazards. The module includes protection circuits that prevent voltage spikes and electrical transients from causing arcs at the cable interface, while still enabling bidirectional communication through the single power cable.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Simplifies connections, reduces material and economic costs, minimizes arcing risks, and allows for safe, efficient operation in explosive environments by using a single cable for power and signal transmission, thus reducing downtime and compliance with ATEX regulations.
Implementation Method 1
a Power Line communication network with a mother PowerLine module in a non-ATEX environment converting digital signals to analogue, a child PowerLine module in the ATEX environment converting back to digital
Data Source
Figure 1a~1b
Figure 2
AI summary
The present invention relates to a system (1) for monitoring a device arranged in an explosive risk environment such as those covered by Directive 2014/34/EU (hereinafter referred to as "ATEX environment") comprising a network device (22), a mother Powerline module (2) electrically connectable to an electrical network (21). The system (1) further comprises a device configured to operate in an ATEX environment, and a child PowerLine module (31), a power supply module (32), and a processing unit (33) configured to receive/transmit the digital signal from the child PowerLine module (31) and generate an actuation signal for said device arranged in an ATEX environment. In particular, the system comprises a casing (34), arranged in an ATEX environment and complying with EN 60079 standards, having a cavity, wherein at least one of the PowerLine child module (31), the power supply module (32) and the processing unit (33) are arranged in said cavity. Furthermore, the power supply module (32) and the child Powerline module (31) are electrically connected with said electrical network (21) by means of a single electrical cable (Y).